Envelop-stachine



G. BALL.

ENVELOP MACHINE.

APPLICATION FILED ocT. 24, I9I7.

G. BALL.

ENVELOP MACHINE.

APPucATmN FILED ocT.24,1911.

3 SHEETS-SHEET 2.

INVENTQR WITNESS 1 TTORNEVS G. BALL.

ENVELOP MACHINE.

APPLlcAnoN FILED 00H24, 1911.

l 3 1 3 ,248 Patented Aug. 19, 1919.

3 SHEETS-SHEET 3.

.'NVENTOR I@ E/J/0 o 60,7596

A TTORNEYS WITNESS UN lTED STATES PATENT OFFICE.

GEORGE BALL, OF PIBIIILADELPI-IIA, PENN SYLVANIA, ASSIGNOR TO WHITING- PATTERSON COMPANY, INCORPORATED, A CORPORATION 0F PEN NSYLVANIA.,

ENVELOP-MACHINE.

Specication of Letters Patent.'

Patented Aug. 19, 1919.

Application led October 24, 1917. Serial No. 198,224.

ToV all whom t may concern:

Be it known that I, GEORGE BALL, a citizen of the United States, and a resident of the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Envelop-Machines, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to vmachines adapted for the production of what are commercially known as window envelops, that is, envelops having an opening in the face covered by a piece of transparent or translucent paper through which the address on the contents of the envelop may be read, a principal ob ject of my invention being to combine various means and instrumentalities with a machine adapted for the production of ordinary envelops, so that either ordinary envelops or window envelops may be rapidly and efficiently manufactured upon the said machine as desired;

My invention further includes all of the various other objects and novel features of construction and arrangement hereinafter more definitely specified and described.

For the purpose of carrying out the objects of my invent-ion I provide an ordinary reciprocating envelop machine of suitable construction with certain means and instrumentalities including' means for feeding a continuous web of transparent paper, means for severing the web into predetermined lengths to form the individual coverings for the 'window openings in the envelops or patches as they are known in the art, means for transferring Athe severed patch from the cutting means to a proper position for application to the envelop blank, and means for suitably gumming the blank around the window opening. To accomplish these and other functions hereinafter more specilically set forth, I may employ any means and instrumentalities Suitable for effecting the results desired, and I do not, therefore, limit myself specifically to those means and instrumentalities which I have herein illustrated and described for the purpose of enabling persons skilled in the art to make, construct and use my invention.

For the purposes of this application I have shownany invention as applied to a wellknown form of reciprocating envelop machine primarily comprisng means for vsupporting the envelop blank, mea-ns for gumming the blank on the back and seal flaps; means for feeding the gummed blanks to a creasing plate, a vertically reciprocating creasing plunger, and means for folding the gummed blanks into completed envelope, all of these operations andthe means generally employed to effect them being familiar to those skilled inthe art, and I have, therefore, illustrated somewhat diagrammatically only those portions of the envelop machine necessary to a clear understanding of my invention. y

In the drawings accompanying and forming a part of this specification, Figure 1 is a side elevation of my invention in combination with a reciprocating envelop machine as aforesaid, certain parts being broken away and other parts being shown in vertical section for the sake of cle-arnese, and Fig. 2 a similar view, certain of the parts, however, being shown in different positions than asshown in Fig. 1. Fig. 3 is a fragmentary view in elevation, and also partially in vertical section, of certain details of my invention, portions of the envelop machine proper being also shown; Fig. 4,'a fragmentary 'view in side elevation of certain details of the mechanism; Fig. 5, a similar view, partially in section, of other details thereof, and Fig. 6 a fragmentary top plan view taken on a plane normal to the plane in which the cutting knife is arranged to reciprocate, as hereinafter described.

Referring now to the drawings, the envelop machine therein shown comprises the usual frame l support-ing a bed 2 adjacent the forward end of which (that is, the end toward the left hand side of the sheet in Figs. l and 2) is the usual elevator 3 which serves to support a stack of envelop blanks 4 beneath the vertically reciprocating gumming dies 5 which are actuated by suitable mechanism in the ordinary/manner, the dies being arranged to descend upon the topmost blank in the stack and deposit al layer of gum upon the flaps of the blank, and also, by means of an additional gumming die 6, around the window opening in the blank, it being understood of course that this opening has been formed in the blank prior to its introduction into the machine. The machine also comprises a strippino` -plate 7 which serves to strip the blank' rom the dies as it is carried upward during the reverse stroke of the latter7 and a reciprocating carriage 8 which serves to transfer the gunnned blank from beneath the stripping plate to a position on a creasing plate 9 beneath al vertically reciprocating creasing plunger 10, which operates to drive the blank downwardly through the creasing plate to the folding bed l2 where the flaps are folded and pressed down into position by suitably actuated folding fingers 13 in the wellknown manner. Mechanism (not shown) may also be provided. for transferring the completed envelop from the folding bed to a suitable drier from which itl is removed after a predetermined period of time, all of these operations and the means ordinarily employed to effect them being well known to, and thoroughly understood by, those skilled in the art.

For the purpose of adapting an envelop machine substantially of the type hereinbefore described for the rapid and economical production of window envelops, provide and combine therewith various means and instrumentalities, a preferred embodiment of which will now be described and which may comprise a pair of rearwardly and upwardly extending brackets 2O firmly secured to the bed 2 of the machine by bolts 2l, these brackets serving to support a reel 23 adapted to carry a roll of transparent or translucent paper 25 preferably of a width sutii'cient to form a patch of the length desired. l also provide a pair of suitable feed rolls 2G and 27, the latter being stationarily journaled in brackets 2O and the former being supported on a pair of' swinging arms and pressed toward roller 27 by a spring Q9, thereby affording an intimate contact of the, rolls with paper 25 wien passed be# tween them and insuring a positive feed thereof when the rolls are revolved. For the purpose of intermittently revolving the feed rolls l provide the rolls with suitable intermeshing gears and arrange for the actuation thereof through a suitable gear 30, oreferably mounted on the exterior of one of the brackets Q0 and carrying a ratchet wheel 3l controlled by a spring; pressed pawl 32. in'

turn actuated by a pair of pivoted bell crank levers 33 and 3l connected by a link B5. The bell crank lever 3T carries a cam roll 36 maintained, as by a spring against a cam positioned on a transversely extending main cam shaft 39 journaled in suitable brackets All secured to the bed of the machine and extending rearwardly therefroim said shaft being driven in any suitable manl chain -tl passing over a sprocke 39 and actuated from a sprocket iving shaft t provision may be made, as bv slot ef-l for the adjustn I :if the inarhinc.

of the bell crank lever 3l thus affording means for regulating the length of the stroke of pawl 32 and, correspondiuglythe amount w'hich feed rolls 26 and 2T will be rotated by eac-h revolution of cam 37, thus di ern'lining, within limits, the length of paper which will be fed forward at cach actuation of the rolls.

Extending transversely between brackets 2O and in front of the feed rolls is a stationary table JA having a slot +5 adapted to receive the lower extremity of a suitable reciprocating cuttinga knife lo, as hereinafter more specifically describedr` the table being preferably arranged so that its upper surface will form an angle of about degrees with the horizontal and the knife being normal7 or substantially normal, to the plate. F or holding the paper 25 in contact with the table during the cutting operationlsuitable means are provided which, in the form of the invention shown, comprise a. presser foot 4S arranged above the table in front of the knife and loosely carried b v a. member integral with` or fixedly attached to, a block 51 arranged for reciprocation in a plane substantially parallel to the knife in suitable guideways 55 formed in brackets 20, a keeper plate 5G at each end of the block and spanning the guideways on the exterior of each bracket serving` to prevent the lateral movement of the block. The presser foot 48 may preferably be slipported from member 50 by suitable studs (3() passing freely through the membermy small springs 6l interposed between the presser foot and the member being arranged to hold the parts in separated relation and insuring a good contact between the presser foot and the paper when the former brought down against the latter to hold it in position on the table. lt will be uuderstoml that, as best shown in Fig. l` member 50 is spaced from block 5l for a distance. just. suflicient to provide a space to contain knife lo and to permit its reciprocatifm therein relative. to the block and memben which parts are joined together above the upper edge of the knife in such manner that they will move in unitary relation when the block is reciprocated with relation to the plate. For Athe purpose of reciprocating block 5l and member 50` suitable means are provided. preferably comprising a curved arm @'35 disposed outside of each of the brackets 20. the arms being connected by a shaft (3(3 journaled in and passing transversely through the bracket The outer end of each arm is movablv connected by means of a link ,l with each of block 5l, and intermediate the ends one of the arms, for example. tm the ht hand sid-e of the machine when viewed omlthe frontq is connected a push rod (S8 d a cam roll G9 bearing oh :uitablv 'rotan-so, cam 'YC positioned. on ca shaft 39,

lid

v the machine, connected at one end to the arm and at the other to some convenient part stationary Kwith regard t0 brackets 20, being arranged to constantly drarw the curved arms, and in t-urn block 51, downwardly and insuring continuous contact between the cam roll and the face of the cam.

For the purpose of actuating knife 46, a lever T5 is rigidly secured at one end to a shaft 76 extending transversely of, and journaled in, brackets 20, and at the other end to the knife blade, or to an extension 77 thereof, by links 78, and a suitable push 'rod 79 carrying at its lower end a cam roll 80 is movably secured at its upper end to a crank arm 76 xed to one end of 4shaft 76, the cam roll being arranged to traverse the face of a suitable cam 82 secured on main cam shaft 39, a. spring 85 secured at one end to the crank arm and at the other to bracket 20 serving to constantly drw the crank arm downwardly and insure the contact of the cani roll with the cam. 1t will be understood that each of the push rods 68 and 79 is preferably provided adjacent its lower end with a suitable fort (not shown) arranged to ride over the cam shaft 39 to maintain the clam rolls in correct relation with regard to the cams and preventtheir lateral displacement, or if desired, any other suitable means adapted for accomplishing this result may be employed.

Means are provided for transferring the patch after it has been severed from the continuous web by the operation of the knife, as hereinafter described, to the gunnned envelop blank positioned beneath the creasing plunger 10, said means preferably comprisingr a suitable patch conveyer, means for moving the conveyer from adjacent the table to a position beneath the creasing plunger, and means for Iausing the patch 'to adhere to the conveyer during this movement. More specifically said means may comprise a yoke shaped convcyer 100, best shown in Fig. 3, the distance between the arms of the yoke being Vpreferably somewhat. less than the length of a patch .l which of course is equal to the width of the web 25. the arms of the yoke being preferably rectangular or substantially rect-angular in cross section. The conveyer is provided with an upwardlyv projecting stem 101 rigidly connected with a flanged block 102 arranged for longitudinal reciprocation in `a swinging housing 105 provided with a slot 106 in which the block is arranged to'engage and which forms a guide therefor, a keeper plate 10T secured to the block and projecting over the edges of the slot. on one side of the housing and the Hange on the block projectiner over the edg'es of the slot on the other side of the housing serving to prevent the lateral displacement of the block, while a rod 109 eX- tending above and below the block and slidable in suitable longitudinally extending apertures in the housing serves as an additional guiding means to preserve the proper alinement of the block and the housing. The housing adjacent its upper eX- tremity is rigidly secured to, and therefore rotatable with, a transversely extending shaft 112 journaled in a suitable bracket 113 secured to the frameof the machine and 'ari-ying, vadjacent its outer extremity, a crank 111 connected by alink 115 with one end of a bell-crank lever 116 pivoted on a shaft 118 journaled in the brackets40, and having at its opposite end a cam roll 120 arranged for engagement with the face Aof a caln 121 on am shaft 39, a spring 122 attached to the bell crank lever and to some suitable portion of the frame. of the machine serving to constantly maintain the cam roll and cam in contact. It will thus be evident that any movement of the bell crank lever due to the rotation of cam 121 will result. in a movement of crank 111 and partial rotation of shaft 112, thereby imparting to housing 105. and in turn to conveyer 100. a swinging movement about the axisot' shaft 112 as a center, the extent of which is primarily determined by the configuration of the face of ca-m 121 and relative proportions of the arms of bell crank lever 116.

For the purpose of causing the conveyor to assume the proper positions for removing the patch from table. 14 and delivering it beneath the creasing plunger, means are provided for effecting a relative movement between the conveyer and the housing. comprising, in the-form of the invention shown, al member 130 having a curved slotl 131 adapted to receive a roller 132 carried by block 102` as best shown in Fig. 3, the member being pivoted to the frame of the Inachine upon a stud 13+ and connected through a suitable link 135 with one arm of the bell crank lever 13min turn pivoted on shaft 11S and having adjacent the outer end of its opposite arm a cam roller 139 engaging'a suitable cam 140 on main cam shaft 39, a spring 141 connected to the bell crank lever and to some suitable part of the frame of the machine serving to maintain the cam roller and cam in constant contact` so that. the rotation of the cam will etl'ect a movement of member 130 about stud 134 in turn effecting a movement of block 102 in housing 105 aud a resulting movementl of conveyer 100 for a purpose to be hereinafter described.

vlvleaus are also provided 'to cause the patch to adhere to the conveyer during the movement of the latter from a posit-ion adjacent table. Jf-lto a position adjacent the envelop blaakte which the patch is to be rifle 1:...)

applied, and for this purpose the conveyer is provided with one or more internal apertures or passages 150 terminating at the extremities of the conveyer and communicating through flexible piping 152 with a vacuum pump which may comprise a cylinder 155 open at one end and having a piston 156 actuated through a bell crank lever 157 pivoted to the fra-me of the machine and operated through a link 158 from a suitable cam (not shown) although, if desired, the

pump may be of any other preferred construction. Mea-ns are also provided, as best shown in F ig. 5, for releasing the vacuum in the pump, and in turn in the conveyer, at the proper point in the cycle or operations of the machine; for example, a valve 160 operative to close a port 161 in cylinder 155 and actuated through a suitable link 1-62 by means of a bell crank lever 163 pivoted to one of the brackets 40 and carrying a cam roll 164vmaintained in contact with a suitable cam 165 on main cam shaft 39 by a suitably positioned spring 168, the cam being adapted to raise valve 160 against the tension of spring 168 to open port 161 and release the vacuum in the cylinder at the proper point in the cycle of operations as hereinafter described.

in order to permit the conveyer to bring the patch into proper registration with the window opening in the envelop blank, the creasing plunger 10 is provided with a pair of suitably disposed slots 170 of sufficient size to receive the arms of the conveyer so that it can assume a position substantially parallel to the plunger shaft, and to enable the conveyer to engage the paper beneath presser foot 48 on table 44, the former, as well as that portion of member 50 above the presser foot and lying in the path of the conveyer, is also provided with similar slots 172, as best shown in Fig. 6.

The parts having -been constructed and assembled in connection with a suitable envelop machine preferably substantiallyas described, the operation of forming an outlook or window envelop may be briefly indicated as follows: Presuming the parts to be .in substantially the position shown in Fig. 1 in which an envelop blank B is being raised from stack 4 through the operation of the gumming dies, and web 25 is being' fed forwardly over table 44 through the operation of the feed rolls, the continued rotation of shaft 39 iirst causes cam 121 to actuate bell crank lever 116 to swing-nous ing 105, and in turn conveyer 100, rearwardly toward table 44, member 130 remaining substantially stationary until the housing has completed about two-thirds of its rearward swing, when, through the actuation of bell crank lever 136 under the influence of cam 140, the extremity of curved member 3.30 is depressed, thus forcing the n erases conveyer radially outwardly with respect to the housing to cause it to register with that portion of web 25 which has been fed past slot 45 in table 44, and which is now held in position thereon by presser foot 48 which is timed to descend upon the web aer the completion of its forward movement under the action of the feed rolls and at a very short interval of time before, or substantially simultaneouslv with, the de scent of the conveyerl upon the web, it being understood that the movement of the presser foot is effected through the operation of cam 70, push rod 68., curved arms 65 and links 67, which as hitherto described, are operative to eiiect the actuation of the block 51 and in turn of the presser foot. The projecting portion of the web which is to form the patch, and the width of which has been determined by the adjustment of link 35 with respect'to bell crank 34 now being securely held on the table by the action of the presser foot, knife 46 is caused to descend through the actuation of its controlling mechanism by the cam 82 and sever the patch, (the relative position of the parts after this operation being shown in Fig. 2) and substantially simultaneously with this operation, a vacuum is formed within cylinder 155 and in turn within the conveyer, thus causing the severed patch to adhere to the latter. The continued rotation of shaft 39 now brings the cams 70 and 82 into positions to respectively raise the knife and the presser foot and thereafter to swing' the outer extremity of mem-ber 13G upwardly under the influence of cam 14C-to raise the conveyer with its adhering patch away from table 44 suiliciently to permit the patch to clear the table during the forward swing of the conveyer which now commences and which. is effected -by the action of cam 121 whose continued rotation lifts the outer end of 4bell crank lever 116 to swing the housing forwardly to assume a position parallel with the creasing plunger shaft, thus bringing the patch into proper alinement with the outlook window opening in .the gummed envelop blank B which has meanwhile been stripped from the gumming cies and transferredby conveyer 8 to a ppsition on the creasing plate beneath the creasing plunger. Simultaneously with the termination of the forward swing of the conveyer, member 130 is caused to swing slightly downwardly thereby lowering the conveyer vertically toward the blank, the vacuum in the'conveyer being simultaneously released under action of cam 165 to free the patch from the con-y veyer, Meanwhile, the creasing plunger having begun to descend from its uppermost position prior to the time when the conveyer reached the termination of its forward swing, has now descended sufficiently to contact with the patch and force it and the of itsY actuating cam 1&0, has been swung upwardlyl suiciently to raise the lower end of the 'conveyer to a position substantially similar to that shown in Fig. l in which the lower ends of the conveyer are entirely clear of the creasing plate and the feed rolls have been again set in operation to feed another length of the patch paper forwardly beneath the knife thus completing the cycle of operations of the machine.

It will thu-s be evident that through the employment of my invention in connectionwith an envelop machine, the manufacture of window envelops may be carried on rapidly and economically,'and that, when desired, the same machine may be utilized for the manufacture of ordinary envelops without in any way disarrang'lng or even changing the adjustment of any o the parts other than detaching the auxiliary gumming die 6 and removing the roll of transparent paper from reel 23, although, of course, 1t is preferable when utilizing the machine for the manufacture of ordinary envelops to disconnect chain 42 or other means by which shaft 39 is driven and thereby save unnecessary wear upon the parts actuated through the rotation of this shaft. 4

While I have herein illustrated and described with considerable particularity a preferred embodimentV of my invention and have shown the same in connection with a well-known form .'of reciprocating envelop machine, I do not thereby desire or intend to limit myself specifically to such embodiment of my invention, or to its use 1n connection with an envelop machine identical with that to which lll have referred, as suitable changes and modifications may be made in the details and arrangement of the v arious means and instrumentalities employed, and the invention ,may be adapted for use in connection with other forms of envelop machines, without departing from the spirit and scope of the invention as defined in the ap ended claims. Y

laving thus described my invention l claim and desire to protect by Letters Patent of the United States:

1. The combination with an envelop machine having means for supporting an envelop blank, means for gumming said blank on the back and seal flaps and around an opening therein, means for feeding the gummed blank to a position beneath a. creasing plunger and means for folding the gummed blank into a completed envelop, of paper feeding means, means for severing said paper, and angularly and radially movable means operative in its radial movement to lift a severed portion of said Apaper from said severing means and in its angular movement to convey said severed portion of said paper from a point adjacent said severing meansI to a position adjacent said envelop blankbeneath said creasing plunger.

` 2. The combination with an envelop machine having means for supporting an enf velop blank, means for mming saidv blank on `the back and seal aups and around an opening v therein, means for feeding the gummed blank to a position beneath a creasing plunger and means for folding the gummed'blank into a completed envelop, of

vmeans for .intermittently feeding a continuous web of paper, means for severing said web and angularly` and radially movable `means operative in its radial movement tolift a severed portion 0fv said paper from said severing means and in its angular movement to convey said severed portion of said paper from a point adjacent'said severing means to a position adjacent an envelop blank beneath said creasing plunger.

3. The combination with an envelop machine having means for supporting an envelop blank, means for gumming said blank on the back and seal flaps and-around an opening therein, means for feeding the gummed blank to aposition beneath ay creasing plunger and means for foldingthe gummed blank into a com leted envelop,of means for intermittently eeding a continuous web of paper, means for lsevering'V said web to form a patch and depending means rotatable and slidable in a vertical plane operative in lits sliding movement to lift the severed portion of said paper from said severing means and in its rotating movement to convey said patch from a point adjacent vsaid severing means to a point be; neath said creasing plunger adjacent said envelop blank.

4. The combination with an envelop machine having means for supporting an envelop blank, means for gumming said blank on the back and seal flaps land around an opening therein, means for feeding the gummed blank to a position beneath a vcreasing plunger andmeans for folding the gummed blank into a completed envelop, of means operative to intermittently feed a continuous web of paper, means operative to sever said web at a predetermined point to form a patch and means movable about a stationary horizontal axis and also radially j 5. The combination with an envelop machine having means for supporting an envelop blank, means for gumming said blank on the back and seal flaps and around an opening therein, means for feeding the 1grummed blank to a position beneath a creasing plunger and means for folding the gummed blank into a completed envelop,I of means operative to intermittently feed a continuous web of paper, a reciprocating knife operative to sever said web into predetermined lengths to form patches, a patch conveyer, means operative to cause the severed patch to adhere to said conveyer, means operative to impart to said conveyer a swinging movement about a stationary horizontal axis and means operative to impart to said conveyor a radial movement normal to said axis.

6. The combination with an envelop machine having means for supporting an envelop blank, means for gumming said blank on the back and seal flaps and around an. opening therein, means for feeding the gui'nmed blank to a position beneath a creasing plunger and means for folding the ,summed blank into a completed envelop, of means for intern'iittently feeding a continuous web of paper across a table, a reciprocating knife operative to sever said web upon said table to form a patch, a patch eonveyer, means for causing said patch to adhere to said conveyer, means for imparting to said conveyer a swinging movement in a vertical plane about a horizontal axis and means for imparting to said conveyer a radial movement -vvith respect to said axis when said conveyer is adjacent said table.

T. ln an envelop machine, the combination ivith means for supporting an envelop blank, means for gumming said blank o-n its back and seal fla-ps and around an opening therein. means for transferring said blank from said ,cumming means lto a creasing plate, a. vertical reciprocating creasing plunger, and means for folding, the blank into a completed envelop, of means for intein mittently feeding a continuous web of paper, means operative to sever said paper to form a patch, a swinging patch conveyer, means operative to cause a vacuum within said conveyer during a predetermined interval of time and means operative to impart to said conveyer a radial movement with respect to the axis about which said ccnveyer is arranged to rotate to cause said conveyer to contact with said patch substantially coincident with 'the termination of its swing in one direction and to carry said patch to said envelop blank substantially coincident with the termination of its swing in the other direction.

8. ln an envelop machine, the combination with means for supportingan envelop blank, means for ,guinming said. blank en amazes its back and seal flaps and around an opening therein, inea-ns for transferring said blank from said ,qumming means to a creas- .ivng plate, a vertical reciprocating creasing permit said conveyer to move into alinement with said creasing plunger and means for imparting to said conveyer a reciprocating movement in a direction substantially parallel to the axis of said creasing; plunger shaft.

9. In an envelop machine, the combination with means for supporting an cnvelop blank, means for ,gumming said blank on its back and seal fiaps and around an opening therein, means for transferring said blank 'from said gumming means to a creasing plate, a vertical reciprocating creasing plunger', and means for folding the blank into a completed envelop, of means for feeding a continuous Web of paper across a table, means to position said web upon said table, cutting means operative to .sever said Web to forni a patch of predetermined Width, a patch conveyor arranged for movement about a stationary horizontal axis, means operative to move said conveyer about said axis, means to cause said patch to adhere to said conveyer during its movement in one direction, and means to `reciprocate said conveyer in a direction-fnormal to its axis of rotation to bringsaid conveyor into contact with said patch on said table at the limitof its swinging movement in one direction and to move said conveyer vertically toward said envelop blank at the extremity of its swing; in the other direction.

10. ln an envelop machine, the combina tion of a housing` movable about a fixed axis, a patch eonveyer carried by said housing and movable relatively thereto, means operative to move said housing, means for feeding a web of the paper, means operative to support said web, means operative to sever said web to form a patch, a movable member operative to position said conveyer with respect to said housing' and said support to contact said patch, and means operative to cause the movement of said memher.

l1. lin an `envelop machine, the combination of a swinging housing, means operative to swing said housing, a patch conveyer movable with said housing and relatively movable with respect thereto, Web feeding means, a Web support, means to position the web upon said support, a cutting; knife operative to support said web to form a patch and means comprising a pivoted slotted member operativeto effect the movement of said conveyer with respect to Said housing` a-nd said supporting means at predetermined periods with relation to the movement of said housing.

1'2. In an envelop machine, the combination of a swinging housing, a conveyer movable with and with respect to said housing, means for feeding a web of paper, means operative to support said web, means operative to sever said web to form a patch, means to effect the movement of said housing toward and away from said supporting means, and means operative to move said conveyer with respect to said housing to cause Said conveyer to contact with said patch upon said supporting means.

13. In an envelop machine, the combination of a swinging housing, a conveyer movable with and with respect to said housing, paper feeding means, a paper support,

means to position the paper upon said support, a cutting knife operative to sever said paper to form a patch, means operative to swing said housingr toward and away from said support, means operative to eect a relative movement of said conveyer and said housing' to bring said conveyer into contact with the paper on said support, and means to cause said paper to adhere to said conveyer.

In Witness whereof, I have hereunto set my hand this 23rd day of October, A. D. 35

GEORGE BALL. 

